Draper seal for crop header

A header includes a forwardly disposed cutter bar assembly and a rearwardly disposed draper deck assembly. The draper seal includes a flexible strip that runs parallel to the cutter bar assembly and perpendicular to the direction of travel. A bracket secures the forward edge of the flexible strip to an upper surface of the cutter bar assembly, which bracket also biases a rearward edge of the flexible strip into engagement with an upper surface of the draper deck assembly, thereby creating a seal between the cutter bar assembly and the draper deck assembly.

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Description
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 15/453,161 filed on Mar. 8, 2017, which is a continuation of U.S. patent application Ser. No. 13/766,800 filed on Feb. 14, 2013 (now U.S. Pat. No. 9,635,810 issued on May 2, 2017), which claims priority to Canadian Patent Application Serial No. 2,799,093 filed on Dec. 18, 2012, the entire contents of which are hereby incorporated by reference herein.

FIELD OF THE INVENTION

The invention relates to agricultural implements for harvesting crops, and more particularly to harvesting headers comprising a draper deck.

BACKGROUND OF THE INVENTION

It is known in the field of crop harvesting equipment to employ harvesting headers to cut crops for various purposes, such as feeding a combine harvester or swathing crop material. Such harvesting headers may comprise a cutter bar assembly for cutting the crop material, and a draper deck assembly for transporting the cut crop material to a desired location (e.g. the intake for a combine harvester). The draper deck assembly normally comprises two spaced-apart rollers for receiving a continuous loop of draper fabric or canvas, with a support plate fixed under the upper run of draper canvas and disposed between the rollers. In operation, the implement is driven into the standing crop, with the cutting edge assembly at the leading edge of the implement. After the cutting edge assembly cuts the crop material, the crop material falls and/or is moved rearwardly onto the generally horizontal draper deck assembly and then transported perpendicular to the direction of travel by the draper deck assembly and deposited either on the ground or at an intake for subsequent processing. Such an arrangement has many known benefits and has achieved wide acceptance and use.

However, it has been recognized that traditional cutter/draper arrangements as described above may generate undesirable results. In the traditional arrangement, the cutter bar assembly is slightly spaced from the draper deck assembly, and the gap between the two assemblies can receive chaff, mud, plant juices and other materials that can accumulate on surfaces adjacent the gap and ultimately interfere with optimal operation of the implement.

Some attempts have been made to address this problem by sealing the gap between the cutter bar assembly and the draper deck assembly. In one such attempt, for example, a John Deere Model 800 header was provided with a sealing plate mounted on the cutter bar assembly and extending rearwardly over the forward edge of the draper deck assembly. However, it has been recognized that the draper canvas can become pinched between the sealing plate and the support plate underlying the draper canvas, resulting in wear, and it has been noted that accumulation of undesirable materials was still evident.

In response to this identified deficiency, an alternative solution was proposed in Canadian Patent No. 2,138,939 to MacDon Industries Ltd. In this alternative solution, the support plate and rollers were shifted rearwardly of the leading edge of the draper canvas, resulting in a cantilevered edge of the draper canvas that could be in contact with an overhanging sealing plate without binding against the support plate in operation. However, there is an obvious lack of support for the forward edge of the draper canvas, with the risk that undesirable materials can still foul the moving parts of the implement.

What is needed, therefore, is a solution that provides a reliable seal and does not detract from the integrity of the draper canvas functionality.

SUMMARY OF THE INVENTION

The present invention therefore seeks to provide a draper seal that is composed of a flexible material in order to avoid binding of the draper canvas, while preventing fouling of implement components from undesirable material accumulation.

According to a first aspect of the present invention there is provided a draper seal for a harvesting header, where the header comprises a frame on which is mounted a forwardly disposed cutter bar assembly and a rearwardly disposed draper deck assembly. The draper deck assembly comprises two spaced-apart rollers on which a continuous loop of draper canvas is mounted, and a support plate disposed underneath an upper run of the draper canvas and between the rollers. The draper seal comprises a flexible strip that runs parallel to the cutter bar assembly and perpendicular to the direction of travel, the flexible strip having a forward edge and a rearward edge. A bracket secures the forward edge of the flexible strip to an upper surface of the cutter bar assembly, which bracket also extends rearwardly to bias the rearward edge of the flexible strip into engagement with an upper surface of the draper canvas, thereby creating a seal between the cutter bar assembly and the draper deck assembly.

According to a second aspect of the present invention, there is a provided a harvesting header comprising a frame, a forwardly disposed cutter bar assembly mounted on the frame, a rearwardly disposed draper deck assembly mounted on the frame, and a draper seal mounted on the cutter bar assembly. The draper deck assembly comprises two spaced-apart rollers on which a continuous loop of draper canvas is mounted, and a support plate disposed underneath an upper run of the draper canvas and between the rollers. The draper seal comprises a flexible strip that runs parallel to the cutter bar assembly and perpendicular to the direction of travel, the flexible strip having a forward edge and a rearward edge. A bracket secures the forward edge of the flexible strip to an upper surface of the cutter bar assembly, which bracket also extends rearwardly to bias the rearward edge of the flexible strip into engagement with an upper surface of the draper canvas, thereby creating a seal between the cutter bar assembly and the draper deck assembly.

In exemplary embodiments of the present invention, the flexible strip and the draper canvas are both composed of a fabric substrate that has been coated with rubber and then vulcanized. The bracket is preferably an elongate metal bracket that extends the length of the cutter bar assembly and secures the forward edge of the flexible strip with a plurality of bolts. The bracket preferably comprises a forward portion that is configured to engage and be secured to the cutter bar assembly, and a rearward portion that is angled downwardly to press the rearward edge of the flexible strip against the upper run of the draper canvas. The draper deck assembly may be comprised of a single draper canvas or two separate draper canvases moving cut crop material in a single direction, or paired draper canvasses each moving cut crop material toward a centrally disposed draper assembly that feeds the received crop material to a further processing unit such as a combine harvester.

A detailed description of an exemplary embodiment of the present invention is given in the following. It is to be understood, however, that the invention is not to be construed as being limited to this embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings, which illustrate an exemplary embodiment of the present invention:

FIG. 1 is a simplified, partially cutaway elevation view of a draper seal according to the present invention;

FIG. 2 is a perspective view of a partial cutter bar assembly and draper deck assembly with a draper seal according to the present invention; and

FIG. 3 is a perspective view of an adjacent cutter bar assembly and draper deck assembly with a draper seal according to the present invention.

An exemplary embodiment of the present invention will now be described with reference to the accompanying drawings.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENT

Only those parts of the header as are necessary for description of the draper seal are shown in the accompanying drawings and discussed herein, as the remaining parts and functions of the header are conventional and are well known to those skilled in the art.

Turning to FIG. 1, a header 10 according to the present invention is illustrated. The header comprises a frame 12 on which a cutter bar assembly 14 and a draper deck assembly 16 are mounted in a conventional manner.

The draper deck assembly 16 comprises a first roller 18 and a second roller (not shown) spaced apart from each other in a direction transverse to the direction of travel, which direction of travel is indicated by the letter D in FIG. 1. The rollers are mounted and powered in a conventional manner that will accordingly not be discussed further herein. The rollers provide support for a draper canvas 20, which is a continuous loop of material commonly formed by taking a fabric and coating it with rubber, which is then vulcanized and formed as desired for the particular application. The draper canvas 20, when installed on the rollers, has an upper run 22 passing above the rollers and a lower run 24 passing beneath the rollers, the upper run 22 presenting an upper surface 26 for receipt of cut crop materials during operation. An outer surface of the draper canvas 20 is provided with transverse slats 28 which run parallel to the direction of travel D and are commonly employed to aid in moving cut crop material along the draper deck assembly 16. The draper canvas 20 and slats 28 can best be seen in FIGS. 2 and 3. A support plate (not shown) is commonly provided between the rollers and immediately beneath the upper run 22 of the draper canvas 20 to provide support to the draper canvas 20. It is to be noted that the draper deck assembly 16 may be comprised of a single draper canvas 20 or two separate draper canvases moving cut crop material in a single direction, or paired draper canvasses each moving cut crop material toward a centrally disposed draper assembly that feeds the received crop material to a further processing unit such as a combine harvester; this will depend on the specific application and is not intended to limit the scope of the present invention.

The cutter bar assembly 14 comprises a beam 36, which beam 36 comprises an upper portion 38 that is disposed forward of and above the upper surface 26 of the draper canvas 20.

Referring now to FIGS. 1 to 3, a draper seal according to the present invention comprises a bracket 42 and a flexible strip 30. The bracket 42 as illustrated is an elongate metal member that extends the length of the cutter bar assembly 14. The bracket 42 comprises a forward portion 46 and a rearward portion 48. The forward portion 46 of the bracket 42 is secured to an upper surface 44 of the upper portion 38 of the beam 36 by means of a series of bolts 50 that pass through aligned holes 40 in the bracket 42 and beam 36. As can best be seen in FIG. 1, the rearward portion 48 of the bracket 42 extends rearwardly of the upper portion 38 of the beam 36 and angles downwardly toward the draper canvas 20.

The flexible strip 30 runs the length of the bracket 42 and comprises a forward edge 32 and a rearward edge 34. The forward edge 32, as can best be seen in FIG. 1, is secured between the bracket 42 and the upper portion 38 of the beam 36 by means of the bolts 50. The rearward edge 34 extends rearwardly of the cutter bar assembly 14 and the bracket 42. The rearward portion 48 of the bracket 42 is angled downwardly toward the draper canvas 20, which has the effect of biasing the rearward edge 34 of the flexible strip 30 downwardly and into contact with the upper surface 26 of the draper canvas 20. The flexible strip 30 is preferably composed of a material similar to the draper canvas 20, namely a fabric that has been coated with rubber and vulcanized, which material has sufficient flexibility to contact the upper surface 26 of the draper canvas 20 without causing binding of the draper canvas 20 against the support plate.

The bracket 42 is shown as having a downwardly angled rearward portion 48, but it is also within the scope of the present invention to have a bracket that is in a single plane and is mounted to the cutter bar assembly in such a way that it rests in a plane that is angled toward the draper canvas 20 to bias the flexible strip 30 against the draper canvas 20.

As can be readily seen, then, there are numerous advantages provided by the present invention. The gap that would otherwise be present between the cutter bar assembly and the draper deck assembly is closed, thus avoiding accumulation of undesired materials. Also, the draper seal comprises a flexible strip that can press against the upper surface of the draper canvas in operation without causing binding and wear of the draper canvas, and it is not necessary to leave any forward part of the draper canvas unsupported. Finally, it is to be noted that the present invention provides a solution that involves a simple and rugged design appropriate to the anticipated operating conditions.

The foregoing is considered as illustrative only of the principles of the invention. Thus, while certain aspects and embodiments of the invention have been described, these have been presented by way of example only and are not intended to limit the scope of the invention. The scope of the claims should not be limited by the exemplary embodiments set forth in the foregoing, but should be given the broadest interpretation consistent with the specification as a whole.

Claims

1. A harvesting header comprising

a frame,
a forwardly disposed cutter bar assembly mounted on the frame,
a rearwardly disposed draper deck assembly mounted on the frame and generally disposed rearwardly of the cutter bar assembly, the draper deck assembly comprising two spaced-apart rollers on which a continuous loop of draper canvas is mounted, said draper canvas having an upper moving conveyor surface being operable to move in a direction of movement that is transverse to a direction of travel of the harvesting header, said upper conveyor surface being operable to receive and move said cut crop material in said transverse direction of movement;
and a draper seal apparatus comprising:
a flexible strip oriented substantially parallel to the cutter bar assembly and substantially perpendicular to said direction of travel of the harvesting header, and substantially parallel to the direction of movement of the conveyor surface,
wherein the flexible strip has a forward edge and a rearward edge; and
a bracket mounted on the cutter bar assembly, the bracket extending substantially parallel to the direction of movement of the conveyor surface and said bracket being configured to secure the forward edge of the flexible strip adjacent an upper surface of the cutter bar assembly;
wherein the bracket extends rearwardly and is operable such that the rearward edge of the flexible strip is biased by the bracket into substantially continuous engagement with said upper surface of the draper canvas to provide a seal between the cutter bar assembly and the draper canvas.

2. The harvesting header of claim 1 wherein the flexible strip and the draper canvas are both composed of a fabric substrate coated with vulcanized rubber.

3. The harvesting header of claim 1 wherein the bracket is an elongate metal bracket that extends the length of the cutter bar assembly.

4. The harvesting header of claim 1 wherein the bracket secures the forward edge of the flexible strip with a plurality of bolts.

5. The harvesting header of claim 1 wherein the bracket comprises a forward portion that is configured to engage and be secured to the cutter bar assembly, and a rearward portion that is angled downwardly to bias the rearward edge of the flexible strip into engagement with the upper surface of the draper canvas.

6. The harvesting header of claim 1 wherein the draper deck assembly comprises a single draper canvas or two separate draper canvases moving cut crop material in a single direction.

7. The harvesting header of claim 1 wherein the draper deck assembly comprises paired draper canvasses each moving cut crop material transversely in opposite directions and toward a centrally disposed draper assembly that is operable to feed the received cut crop material to a further processing unit.

8. The harvesting header of claim 1 wherein the draper deck assembly further comprises a support plate disposed beneath an upper run of the draper canvas and between the rollers, the bracket biasing the rearward edge of the flexible strip such that the upper run of the draper canvas is loosely received between the rearward edge of the flexible strip and the support plate.

9. The harvesting header of claim 8 wherein the bracket extends for substantially the entire length of the cutter bar assembly and the flexible strip extends for substantially the entire length of the bracket.

Referenced Cited
U.S. Patent Documents
12750 April 1855 Chatfield
524215 August 1894 Quigley
855519 June 1907 Maloney
1422002 July 1922 Shaw
1862101 June 1932 Pax
1917604 July 1933 Scranton, Jr.
2235602 March 1941 Biesemeyer
2237517 April 1941 Anderson
2347365 April 1944 Paradise
2413072 December 1946 Sage
2599438 June 1952 Downing et al.
2681134 June 1954 White, Jr.
2685958 August 1954 White, Jr.
2687209 August 1954 Rost et al.
2694894 November 1954 Linscheld
2720743 October 1955 Prather
2795922 June 1957 Hume
3169633 February 1965 Baker
3344909 October 1967 Hansen
3468109 September 1969 Reimer
3472008 October 1969 Hurlburt
3550366 December 1970 Gibson
3771299 November 1973 Gradwohl et al.
3866400 February 1975 May
3927512 December 1975 Molzahn
3945180 March 23, 1976 Sinclair
4038810 August 2, 1977 Williams et al.
4067177 January 10, 1978 Tout
4120137 October 17, 1978 Schoenberger et al.
4127981 December 5, 1978 Parrish et al.
4137696 February 6, 1979 Webb
4156340 May 29, 1979 Colgan et al.
4174602 November 20, 1979 Webb et al.
4177625 December 11, 1979 Knight et al.
4187664 February 12, 1980 Meek et al.
4198803 April 22, 1980 Quick
4199925 April 29, 1980 Quick
4202154 May 13, 1980 Waldrop et al.
4270338 June 2, 1981 Halls
4346909 August 31, 1982 Hundeby
4353201 October 12, 1982 Pierce et al.
4435948 March 13, 1984 Jennings
4441307 April 10, 1984 Enzmann
4512140 April 23, 1985 Blakeslee
4519190 May 28, 1985 Blakeslee
4522018 June 11, 1985 Blakeslee
4541229 September 17, 1985 Elijah
4573124 February 25, 1986 Seiferling
4573309 March 4, 1986 Patterson
4612757 September 23, 1986 Halls et al.
4637201 January 20, 1987 Pruitt et al.
4641490 February 10, 1987 Wynn et al.
4660361 April 28, 1987 Remillard et al.
4662161 May 5, 1987 Patterson
4722172 February 2, 1988 Pearce
4751809 June 21, 1988 Fox et al.
4776155 October 11, 1988 Fox et al.
4833869 May 30, 1989 Klein
4909026 March 20, 1990 Molzahn et al.
4936082 June 26, 1990 Majkrzak
4944141 July 31, 1990 Orlando et al.
4956966 September 18, 1990 Patterson
5005343 April 9, 1991 Patterson
5007235 April 16, 1991 Nickel et al.
5086613 February 11, 1992 Fox et al.
5155983 October 20, 1992 Sheehan et al.
5157905 October 27, 1992 Talbot et al.
5219064 June 15, 1993 Roman
5243810 September 14, 1993 Fox et al.
5261290 November 16, 1993 Ramsay et al.
5359839 November 1, 1994 Parsons et al.
5435239 July 25, 1995 Talbot
5459986 October 24, 1995 Talbot
5473872 December 12, 1995 Fox et al.
5535577 July 16, 1996 Chmielewski et al.
5595053 January 21, 1997 Jasper et al.
RE35543 July 1, 1997 Patterson
5678398 October 21, 1997 Fox et al.
5681117 October 28, 1997 Wellman et al.
5704200 January 6, 1998 Chmielewski, Jr. et al.
5768870 June 23, 1998 Talbot et al.
5791128 August 11, 1998 Rogalsky
5927606 July 27, 1999 Patterson
5992759 November 30, 1999 Patterson
6029429 February 29, 2000 Fox et al.
6044636 April 4, 2000 Minnaert
6079194 June 27, 2000 Waldrop
6170244 January 9, 2001 Coers et al.
6195972 March 6, 2001 Talbot et al.
6199358 March 13, 2001 Majkrzak
6282876 September 4, 2001 Patterson
6324823 December 4, 2001 Remillard
6351931 March 5, 2002 Shearer
6397573 June 4, 2002 Majkrzak
6442918 September 3, 2002 Fox
6453655 September 24, 2002 Ferraris
6502379 January 7, 2003 Snider
6519923 February 18, 2003 Cooksey et al.
6530202 March 11, 2003 Guyer
6543211 April 8, 2003 Talbot
6591598 July 15, 2003 Remillard et al.
6675568 January 13, 2004 Patterson et al.
6698175 March 2, 2004 Schumacher et al.
6708475 March 23, 2004 Guyer
6817166 November 16, 2004 Dunn
6843045 January 18, 2005 Bickel
6854251 February 15, 2005 Snider
6865871 March 15, 2005 Patterson et al.
6889492 May 10, 2005 Polk et al.
6962040 November 8, 2005 Talbot
7077220 July 18, 2006 Dunn et al.
7131253 November 7, 2006 Remillard et al.
7159687 January 9, 2007 Dunn et al.
7188461 March 13, 2007 Fox et al.
7197865 April 3, 2007 Enns et al.
7306062 December 11, 2007 Dunn
7306252 December 11, 2007 Barnett
7308947 December 18, 2007 Barnett
7322175 January 29, 2008 Ferre et al.
7328565 February 12, 2008 Snider et al.
7340876 March 11, 2008 Barnett
7347277 March 25, 2008 Enns et al.
7356982 April 15, 2008 Barnett
7364181 April 29, 2008 Patterson
7373769 May 20, 2008 Talbot et al.
7392124 June 24, 2008 MacGregor et al.
7392646 July 1, 2008 Patterson
7412816 August 19, 2008 Coers et al.
7438305 October 21, 2008 Schulz
7444798 November 4, 2008 Patterson et al.
7454888 November 25, 2008 Barnett
7461498 December 9, 2008 Barnett
7467505 December 23, 2008 MacGregor
7467506 December 23, 2008 Lovett et al.
7472533 January 6, 2009 Talbot et al.
7478521 January 20, 2009 Coers et al.
7484349 February 3, 2009 Talbot et al.
7497069 March 3, 2009 Enns et al.
7549280 June 23, 2009 Lovett
7591127 September 22, 2009 Stacer
7600364 October 13, 2009 Lovett et al.
7640720 January 5, 2010 Lovett et al.
7647755 January 19, 2010 Barnett et al.
7721830 May 25, 2010 Dunn et al.
7730707 June 8, 2010 Pietricola et al.
7849952 December 14, 2010 MacGregor et al.
7856801 December 28, 2010 Remillard
7886511 February 15, 2011 Honas
7908836 March 22, 2011 Rayfield et al.
7918076 April 5, 2011 Talbot
7937920 May 10, 2011 Schmidt et al.
7958706 June 14, 2011 Remillard et al.
7958711 June 14, 2011 Sauerwein
7971418 July 5, 2011 Conrad
7975462 July 12, 2011 Figgins
8006469 August 30, 2011 Barnett
8006831 August 30, 2011 Mackin
8015784 September 13, 2011 Barnett et al.
8020363 September 20, 2011 Barnett et al.
8020648 September 20, 2011 Otto
8056311 November 15, 2011 Barnett
8065865 November 29, 2011 Dow
8069640 December 6, 2011 Barnett et al.
8091330 January 10, 2012 Lohrentz et al.
8096102 January 17, 2012 Smith
8117812 February 21, 2012 Patterson
8161719 April 24, 2012 Barnett et al.
8176716 May 15, 2012 Coers et al.
8191344 June 5, 2012 Sauerwein
8205421 June 26, 2012 Sauerwein et al.
8205422 June 26, 2012 Sauerwein et al.
8225589 July 24, 2012 Barnett
8225903 July 24, 2012 Dunn
8240114 August 14, 2012 Barnett
8245489 August 21, 2012 Talbot
8281561 October 9, 2012 Dow et al.
8286411 October 16, 2012 Barnett et al.
8286412 October 16, 2012 Kidd et al.
8291684 October 23, 2012 Remillard et al.
8291686 October 23, 2012 Cormier
8307620 November 13, 2012 Barnett et al.
8322520 December 4, 2012 Dow
8333057 December 18, 2012 Schroeder et al.
8341927 January 1, 2013 Barnett
8341929 January 1, 2013 Sauerwein et al.
8387351 March 5, 2013 Guyer
8402728 March 26, 2013 Kidd
8408567 April 2, 2013 Bergman et al.
8434290 May 7, 2013 Barnett et al.
8468789 June 25, 2013 Barnett et al.
8479483 July 9, 2013 Huseman
8484938 July 16, 2013 Cormier et al.
8484939 July 16, 2013 Cormier
8511050 August 20, 2013 Cormier
8590284 November 26, 2013 Rayfield
8752359 June 17, 2014 Cormier
9271443 March 1, 2016 Sethi
9338941 May 17, 2016 Herringshaw
9814183 November 14, 2017 Allochis
20020129591 September 19, 2002 Patterson
20070193243 August 23, 2007 Schmidt
20070204584 September 6, 2007 Coers
20070204589 September 6, 2007 Coers
20080092508 April 24, 2008 Talbot
20080271426 November 6, 2008 Lohrentz
20080276590 November 13, 2008 Sauerwein
20080276591 November 13, 2008 Tippery et al.
20090007533 January 8, 2009 Lovett
20090266044 October 29, 2009 Coers
20090277146 November 12, 2009 Sauerwein
20090288383 November 26, 2009 Sauerwein
20090308042 December 17, 2009 Lovett
20100313540 December 16, 2010 Sauerwein
20110308221 December 22, 2011 Sauerwein
20120042617 February 23, 2012 Dow
20120233974 September 20, 2012 Cormier
20120251653 October 4, 2012 Mathy, Jr. et al.
20120260870 October 18, 2012 Wahl et al.
20130036860 February 14, 2013 Corniani
20140001726 January 2, 2014 Statz
20140033940 February 6, 2014 Simpson et al.
20140150601 June 5, 2014 McGrath
20140196427 July 17, 2014 Fuechtling
20160316620 November 3, 2016 Allochis
Foreign Patent Documents
1003310 January 1977 CA
1040438 October 1978 CA
1043577 December 1978 CA
2180627 January 1980 CA
1086508 September 1980 CA
1087402 October 1980 CA
1185438 April 1985 CA
1197694 December 1985 CA
1318135 May 1993 CA
2100204 January 1995 CA
2126909 January 1995 CA
2138939 June 1996 CA
2165735 June 1997 CA
2180625 January 1998 CA
2180626 January 1998 CA
2211363 January 1998 CA
2198672 August 1998 CA
2226200 November 1998 CA
2229152 August 1999 CA
2245213 February 2000 CA
2280681 February 2000 CA
2184278 August 2000 CA
2289164 October 2000 CA
2289171 October 2000 CA
2284432 April 2001 CA
2284436 April 2001 CA
2320379 May 2001 CA
2311019 August 2001 CA
2307176 October 2001 CA
2320524 March 2002 CA
2357825 September 2002 CA
2380557 October 2002 CA
2387898 December 2002 CA
2358883 April 2003 CA
2359598 April 2003 CA
2370891 April 2003 CA
2399234 June 2003 CA
2389513 December 2003 CA
2406416 April 2004 CA
2406419 April 2004 CA
2427755 November 2004 CA
2461790 November 2004 CA
2467595 December 2004 CA
2434981 January 2005 CA
2510883 December 2005 CA
2513037 February 2006 CA
2341283 March 2006 CA
2494395 June 2006 CA
2494034 July 2006 CA
2505431 September 2006 CA
2505458 September 2006 CA
2531189 September 2006 CA
2513605 January 2007 CA
2513614 January 2007 CA
2528731 January 2007 CA
2743336 January 2007 CA
2521187 March 2007 CA
2522387 April 2007 CA
2524151 April 2007 CA
2525904 May 2007 CA
2527797 May 2007 CA
2534200 June 2007 CA
2538020 August 2007 CA
2554689 January 2008 CA
2596403 February 2008 CA
2559217 March 2008 CA
2559353 March 2008 CA
2561463 March 2008 CA
2609744 May 2008 CA
2627320 September 2008 CA
2626486 February 2009 CA
2639032 March 2009 CA
2783567 March 2009 CA
2587107 July 2009 CA
2627053 September 2009 CA
2722896 November 2009 CA
2578907 April 2010 CA
2671880 April 2010 CA
2564777 August 2010 CA
2695689 September 2010 CA
2665580 November 2010 CA
2665589 November 2010 CA
2706704 January 2011 CA
2706705 January 2011 CA
2706706 January 2011 CA
2706707 January 2011 CA
2775891 January 2011 CA
2783670 January 2011 CA
2713636 February 2011 CA
2596627 April 2011 CA
2686017 May 2011 CA
2721118 May 2011 CA
2739632 November 2011 CA
2708744 December 2011 CA
2745105 December 2011 CA
2538489 January 2012 CA
2707624 January 2012 CA
2709336 January 2012 CA
2710676 February 2012 CA
2734475 May 2012 CA
2766611 July 2012 CA
2744070 December 2012 CA
2802894 January 2013 CA
2796109 May 2013 CA
2796120 May 2013 CA
2796131 May 2013 CA
2796134 May 2013 CA
2796177 May 2013 CA
2796165 June 2013 CA
2802958 July 2013 CA
2802963 July 2013 CA
2802972 July 2013 CA
2802975 July 2013 CA
2803470 July 2013 CA
2814924 October 2013 CA
2815395 October 2013 CA
2815408 October 2013 CA
2815421 October 2013 CA
2815427 October 2013 CA
2789049 December 2013 CA
1935226 June 2008 EP
2012/166629 December 2012 WO
Other references
  • Notification issued by the Canadian Intellectual Property Office dated Dec. 23, 2016 regarding a Protest filed on Dec. 14, 2016 against corresponding Canadian Patent Application No. 2,803,762, 15 pages.
Patent History
Patent number: 10694675
Type: Grant
Filed: May 13, 2019
Date of Patent: Jun 30, 2020
Patent Publication Number: 20190261568
Assignee: HONEY BEE MANUFACTURING LTD. (Frontier, SK)
Inventors: Darren Leys (Frontier), Barry Lindmark (Frontier)
Primary Examiner: Arpad Fabian-Kovacs
Application Number: 16/410,174
Classifications
Current U.S. Class: Conveyor System Having A Gravity Conveyor Section (198/523)
International Classification: A01D 61/02 (20060101); A01D 41/14 (20060101); A01D 34/04 (20060101); A01D 34/14 (20060101); A01D 34/40 (20060101); A01D 61/00 (20060101); A01D 101/00 (20060101);